Periodic Table

Front

Where are most nonmetals located on the periodic table?

Back

On the right side.

Front

How many protons does an atom of Calcium have?

Back

20.

Front

What does the atomic number tell us about an element?

Back

It tells us the number of protons.

Front

What is inside the nucleus of an atom?

Back

Protons and neutrons.

Front

What do we call the one or two letter abbreviations for elements on the Periodic Table?

Back

Chemical Symbol.

Front

What is the atomic mass of an element?

Back

The average mass of an atom of an element, measured in atomic mass units (amu).

Front

What are periods in the periodic table?

Back

Horizontal rows of elements that share the same number of electron shells.

Front

What are groups or families in the periodic table?

Back

Vertical columns of elements that have similar chemical properties.

Front

What is a metalloid?

Back

Elements that have properties of both metals and nonmetals.

Front

What is the significance of the periodic table's arrangement?

Back

Elements are arranged by increasing atomic number, which reflects their properties.